[commit: ghc] master: Add a comment (7df6d78)

Repository : ssh://darcs.haskell.org//srv/darcs/ghc

On branch  : master

http://hackage.haskell.org/trac/ghc/changeset/7df6d78090fe1b623d07333347490f0c4d7e954a

>---------------------------------------------------------------

commit 7df6d78090fe1b623d07333347490f0c4d7e954a
Author: Ian Lynagh <[email protected]>
Date:   Wed Dec 12 17:52:51 2012 +0000

    Add a comment

>---------------------------------------------------------------

 compiler/main/DriverPipeline.hs |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/compiler/main/DriverPipeline.hs b/compiler/main/DriverPipeline.hs
index ac77f19..59c7df7 100644
--- a/compiler/main/DriverPipeline.hs
+++ b/compiler/main/DriverPipeline.hs
@@ -1117,7 +1117,8 @@ runPhase cc_phase input_fn dflags
         -- (e.g., -mcpu=ultrasparc) as GCC picks the "best" -mcpu flag
         -- regardless of the ordering.
         --
-        -- This is a temporary hack.
+        -- This is a temporary hack. See #2872, commit
+        -- 5bd3072ac30216a505151601884ac88bf404c9f2
                        ++ (if platformArch platform == ArchSPARC
                            then ["-mcpu=v9"]
                            else [])